<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box{
            background: pink;
            width: 200px;
            height: 200px;
            /* box-shadow: 0px 8px 10px -10px black; */
            /* box-shadow: 0 8px 10px 0 black inset; */
            box-shadow: rgba(240, 46, 170, 0.4) 5px 5px,
                        rgba(240, 46, 170, 0.3) 10px 10px,
                        rgba(240, 46, 170, 0.2) 15px 15px,
                        rgba(240, 46, 170, 0.1) 20px 20px;
        }
    </style>
</head>
<body>
    <div class="box"></div>
</body>
</html>